Nazarii Voitkiv
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Radom,
Poland
3 months 24 days back
available for hire
age 21 years
on the service 1 year
Rating
Successful projects
Average rating
Language proficiency level
Українська: fluent
Русский: advanced
Polski: upper-intermediate
English: intermediate
CV
Fullstack Developer (React, Node.js, React Native).
I build web and mobile applications from scratch: from database and API design to modern animated user interfaces. Experienced in developing admin panels, real-time chats, payment integrations, maps, and notifications. Skilled with PostgreSQL, MongoDB, Firebase, Docker, and AWS. Focused on clean code, fast delivery, and long-term collaboration.
Skills and abilities
Services
Mobile development
Portfolio
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MeetMap — web and mobile application for event discovery
Web Programming
Web (Next.js 14 + Tailwind + Framer Motion) and mobile app (React Native, Expo).
Implemented registration and authentication with email/SMS verification (SendGrid, Twilio).
Integrated Stripe payments via webhooks.
Built a real-time chat (NestJS WebSocket Gateway, Redis) with statuses and messaging.
… Used Mapbox to display events on the map with search and clustering.
Set up CI/CD (GitLab), deployment to AWS EKS with autoscaling.
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Fullstack Online Shop
Web Programming
A custom-built e-commerce system developed as a monorepo, integrating a high-performance frontend and a scalable backend.
Tech Stack:
… Frontend:
Angular 19 – Modern, component-based UI development
Tailwind CSS & DaisyUI – Responsive and flexible styling
NX Monorepo – Managed SSR, environment configurations, and Jest testing
Backend:
Spring Boot 3 & Spring Data JPA – Secure and efficient API handling
Liquibase & PostgreSQL – Database versioning and management
OAuth2 & Spring Security – Authentication and access control
Maven & Java 21 – Dependency management and build optimization
Integrations & DevOps:
Stripe – Secure payment processing
Kinde – Authentication and user management
Docker – Containerized deployment
Optimized NX monorepo – Seamless integration between frontend and backend
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PROVse Website – Freight Work & Handyman Services in Lviv
Web Programming
A fully functional, responsive landing page developed on request for a client to showcase freight work and handyman services in Lviv. The site provides an intuitive interface for users to browse services, request quotes, and receive instant Telegram notifications.
Tech Stack:
Next.js 14 & TypeScript – Server-side rendering & performance optimization
… Tailwind CSS – Fast and adaptive UI styling
Framer Motion – Smooth animations and transitions
React Icons – Enhanced UI with visual elements
Telegram Bot API – Automated order notifications
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Telegram Bot for Automated Messaging
Bot Development
A custom-built Telegram bot developed for automated message distribution with flexible scheduling and database integration.
Key Technologies & Features:
Node.js & TypeScript – Ensures scalability and maintainability.
… Telegraf – Handles bot commands
telegram package – Enables direct user-session messaging with authentication via session storage.
Supabase – Manages messages, groups, and sending logs.
Automated Scheduling System – Randomized message scheduling with adjustable intervals (30-60 min by default).
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Cybersecurity Education Platform – Landing Page
Web Programming
This custom-built landing page was developed for a cybersecurity course, providing an engaging and informative experience for potential students. The platform highlights course benefits, the learning process, and user testimonials while ensuring security, performance optimization, and a seamless user experience.
Tech Stack:
… Next.js 14 (App Router) – Server-side rendering for performance & SEO
TypeScript – Type safety and maintainable code
Tailwind CSS – Modern, adaptive UI styling
Framer Motion – Smooth animations for an interactive experience
Authentication & Security:
JWT Tokens – Secure authentication system
bcrypt – Password hashing for enhanced security
Protected Admin Panel – Secure access control
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Discord Forwarder — bot for forwarding messages between chats
Bot DevelopmentBuilt with Discord.js, using PM2 for continuous operation.
Fetches messages from one Discord channel and forwards them to another.
Supports forwarding of random messages to simulate activity.
Deployed on AWS EC2 with automatic restart on failures.
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Telegram Raffle Platform — a platform for hosting raffles on Tel
Bot DevelopmentUsers can join raffles, and the system automatically selects a winner.
Administrators can create new raffles, configure conditions, and manage the entire process.
Tech stack: Next.js, Prisma, node-cron, Turnstile; Railway + GitHub Actions.
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
|---|---|---|---|---|---|
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One-Page Website (Landing Page) Development
200 USD
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Development of a client web portal for a logistics company
2000 USD
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In memory
5809 USD
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Blik payment bot Telegram channel
548 USD
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Landing page
27 USD
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Backend + Web for the Power Bank rental service through charging stations (QR / IoT)
1743 USD
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Development of custom widgets for the Kommo CRM Dashboard (formerly amoCRM)
465 USD
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CREATION OF A WEBSITE
411 USD
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Bot
329 USD
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React/Node.js Development Agency for Sports Tech Platform (Ongoing)
900 USD
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